Pump



`une 5, 1923. 1,457,368

s. E. HUNTTING PUMP Filed Aug. ll.v 1921 3 Sheets-Sheet l 78 69 ,B8 l A 87 67 72 A" 6g |86 74- p 1l' O 'H 77 @Il i 85 E55., fc 4b 82 61 vq 78 A 73 la v f6 Y f`\,\'

. l 4'2- q l 4-7 l. 47

' l I I \l ATTORNEYS.

June 5, '1923.-

S. E. HUNTTING PUMP Filed Aug. l1. 1921 Z5 Sheets-Sheet 2 IN VEN TOR. ,54m/5L E /u/v 7mm BY 6 S A TTORNEYS.

June 5, 1923. v 1,457,368

' S. E. HUNTTING PUMP Filed Aug. ll. 1921 I5 Sheets-Sheet 3 n l I3 l-@ @gf/ii L 3 l 27 Fgfa ` INVENTOR dgl/WEL #MTN/YG.

VBY

ATTORNEY Patented June 5, 1923.

UNITED STATES tisane PAT-'ENT GFFHCE.

SAQLVIUIELA E. HUN'ITINGLOF SAN FRANCISCO, CALIFORNIA. i

PUMP.

Application filed August 11, 192.1. Serialtlllo. 491,457.

To all whom t may concern:A

Be it known that SAMUEL E. HUNTTING,

`a citizen of the United States of America.

residing at San Francisco, in the county of San Francisco and State of California, has invented certain new and. useful ImproveT ments in Pumps, of which the following isa specification. l

' Thev vpresent 7invention is an improved pump mechanism and relates to apparatus for operating a deep well cylinder which apparatus is variously termed deep welll pumping head, vworking headlor'pumpingl Another object is to so connect the .driving gears on a common shaftthat they will function independently ofeach other.

Another object is to pro-vide .bracing supports for 4the bedplate supporting thecrank shafts which supports will: have strength.

and rigidityand will be inexpensive to construct.

Other objects and advantages, such as structural details, making for durability and strength and efficiency in operation, and economy in construct-ion, will appear as this description proceeds.

.In these specifications and the annexed` 1 drawings, the invention is illustrated in the form 'considered to be the best, but it f is yto be understood that the invention is not limited to 'such form, because it may be embodied in other forms, and it is also tobe understood that in and. by the claims following the description it is desired to cover the'invention in whatever form itmay be embodied. l

In the accompanying two sheets of .draw-V ings, Fig. 1 is= side elevation, partly in section, of my improved pump mechanism.

F ig.'2 is a top plan view of Fig. V1 in `'full llnes.

ing my differential driving gear.

` turnlmcklesy 23 which 's Fig,- 3 is a detail partlyin section1 show- I l Fig. t is ai fragmentaryyview, partly in:d

section, of the lower Aend of a `connecting rod, with its bearing, and showing an oil reservo-ir therein. l 'i i Y,

Figs. 5,76, 7, 8 and 9 are perspeetive views respectively of .a floor plate, vincludingan annular flange member, pump T, bed plate,

and packing gland, and packing gland bush-r ing, thekfigure's being placed one above, an-

other to simulate the order of assembly` andA explain the relation of each. tothe others.

Y Fig. 10 is a detail of a fragment of .casting showing means for engagingI a l `bolt-v head.

buckle .means lReferring tothe drawings, Fig. v1,the numeral 1 indicates a vfoundation vplate-(also shown in perspective in,l Fig.

At 2 I s'howfan annular flange member having a depending flange?) adapted toen#` gage a hole in thel foundation plate 1..

At 4 I show a pump T providedv with a bottom flange, 6 adapted to' Qverlie the flange 2.y A gasket 71isplaced`between flanges 2 and 6. l. y l

A flange 8V on the upper endy of T a fits against the lower; face of abcd plate 9, `shown in Fig. 7. i

The bed plate 9 has a borenll registering with that ofthe T et. .The bed plate cast` ing is provided with a web orfiange 12 in which are bolt holes 13...Bolts' are extended upwardly through vthese holes .to secure .to the bed plate a flange 11i on an upstandingf pumprod guide 16, the. upper end y17y of which forms part of a stuliing box, the other y part of which is indicated at 18.y

The bed platel 9. is'secu-red and braced-.Ito

the foundation plate 1 by staybolts' 19 which i 7o Fig. 11 is 'a central section of a Jn-urn'.

are surrounded by pipes 21-and 22 connected 5 by `sleeves or turnbuckles 23 as shown indetaii, righ. y

The heads o f bolts 19 inserted laterally 100' through openings in lugs-H26 shown ,in Fig,- l

7 and in detail in-Fig. 10. vThe lower ends of bolts 19 extend through holesV 27 in flanges 28 in foundationplate,1v and `arese cured by nuts 29, Fig. 1. l u

Thsstruture permits of a limited, vesti-fY cal adjustment of the bed plate by means of. .nace 'the bed Plat@ from the foundation plate. l v l shaft 32 jouinaled in agbe'aring 33 integrally Poweris applied to through allzu@ belt pulley 31, Fig..1, secured toa drive" formed in bed plate 9. Secured on. shaft 32 are pinions 34y and 36, Fig. 2, which mesh withand drive gear wheels 37 and 38 on opposite sides of bed plate 9. These gear wheels 37 and 38 are differentially driven on a shaft 39 in a bearing 41 in bed plate 9, Fig. 7.

The differential drive is shown in detail in Fig. The purpose of driving the gears 3.7 and 38v independently is te divide the load evenly at all times between these gears and between two similar gears 42 and 43 in mesh therewith and also journaled differentiallyr in a bearing 44 in bed plate 9.

lIhe pump rod (to be later described) is driven by connecting rods indicated at 46 and 73, four in number, two being on each side of the bed plate, and each driven by a gear 37, 38, 42 and 43. Each of these gears is providedon the spokes thereof with means for engaging crank bearings, said means (indicated at 47) diametrically spaced to afford an adjustment for different lengths of working stroke.

In order to divide. the strain of drive equally between the gears, and taking into consideration inequalities of the teeth therei of due to wear or imperfect formation, I

secure the gears on hollow shafts extending half way through the bearings on bed plate 9 at 48, in Fig. 3, which surround shaft 39 l. and are rotatable thereon.

The gears with hollow shafts attached are secured on shafts 39 by washers 49 held in place by bolts 51.

, The gear bearing 52 is provided with an oil well 53 from which oil is fed by. capillary attraction through a groove 54 by a wick 56.

In Fig. 4 at 57 I vshow a crank bolt which extends through any of the apertures 47, in the gears 37, 38, 42 or 43. This bolt is surrounded by a bronze metal bushing 58. I place a wick in a groove 6l. The wick draws oil from a well 62 in a casting 63, through which extends the bolt 57 and bearing 58, which are securedv by a washer 64 and nut 66.

The crank castings 63 are operatively connected to a cross-head 67 by the bolts or connecting rods, 46 and tubular members 73.

The head of each bolt 46 is inserted in a T shaped passage as indicated at 68,v Fig. 4. The upper part of this passage is of a size sufficient toallow the entrance or" the body of the bolt and the lower part admits the head of the bolt. When the parts are thus assembled, the upper ends of bolts 46 are extended through shafts 69 journaled in bearings in the cross-head 67, and secured by nuts` 7l and lock nuts 72.

Tubular members 73 surround the bolts 46 and bear at one end against the castings 63 and at the opposite end against shafts 69. This structure forms tubular braces for the connecting rods 46 and assures equality ot' length of said rods, and at the same time provides an operative connection of the cross-head with the driving elements which bushing 77 internally threaded to engage thek threaded end of the pump rod 78.

The threads on pump rod 78 extend downwardly to a point 79 at which point adjusting nuts 8l supportY a washer 82 against which presses one end of a spring 83. the opposite end of which presses against a washer 84 bearing against the underside of' web 74.

A washer 86 bears against the upper side of web 74 and a spring 87 bears Aagainst this washer at one end, and at the other against a washer 88 secured by adjusting nuts 89 threadedon the upper end of pump rod 78.

This structure permits a certain ainount of movement of fthe cross-head up or down, independently of the pump rod. The web 74 slides on bushing 77 as either of springs 83 or 87 are compressed.

The opposed springs alternately absorb the shock incidental to the change of direc` tion of the stroke and increase the working capacity and durability of the pump.

It will be seen that by nnscrewing nuts 89 frompump rod 78, and unbolting flange 14 on the base of the stuffing box from the bed plate, the cross-head may be readily disengaged from the pump rod, they flange remaining on the pump rod. The cross-head and connecting rods may be moved aside as indicated in dotted lines in Fig. l and the pump rod and any parts attached thereto may be withdrawn as a unit without disconnecting the cross-head from the drive elements. i

The distinct advantages of my pump may be summed up as follows:

The use of four differentially driven gears which act as or drive cranks, so arranged that the side 'thrusts of said cranks are counterbalanced The use of a horizontal bed plate, which is braced to the foundation at a right angle, instead of a diagonal bracing incidental to vertical type pumps, and placing the bracesupports directly under the bearings of the crank shafts so that all working strain shall be transmitted directly through the bed plate to the foundation, without producing bending strain on the bed plate;

The use of opposed springs in the connec-y tion betweenthe pump rod and cross-head to absorb shock inv themechanism due to, change of direction of stroke.

-The use of adjustable braces between the foundation and bed plate and -means :tory

drawing bed plateI and foundation together against these braces; Y

The provision, in a pump mechanism, of differentially driven counter balanced reciprocating members for the pump rod, a guide for for said pump rod, and means whereby the reciprocating members may be folded aside to permit the withdrawal of the pump rod and attached parts.

I claim:

l. In a pump mechanism, a cross head and a pump rod adapted to be reciprocatedv by four connecting rods, and four cranks adapted to drive said connecting rods.

2. In a pump mechanism, a cross head and a pump rod adapted to be reciprocated by four connecting rods, and four cranks adapted to drive said connecting rods, said cranks being parts of wheels journalled in a horizontally positioned bed plate.

3. In a pump mechanism, across head and a pump rod adapted to be reciprocated by four connecting rods, and four cranks adapted to drive said connecting rods, said cranks being parts of wheels journalled in a horizontally] positioned bed plate, driving means for said cranks including said wheels, and further comprising a train of gears, said train consisting of one driving gear and two driven gears, said driven gears having the same number of teeth.

4f. In a pump mechanism, a cross head and a pump rod adapted to be reciprocated by four connecting rods, and four cranks adapted to drive said connecting rods, said cranks being parts of wheels journalled in a horizontally positio-ned bed plate, driving means for said cranks including said wheels, and further comprising a train of gears o-n each side of said bed plate, each train consisting of one driving gear and two driven gea-rs all of said driven gears having the same number of teeth.

5. In a pump mechanism, a cross head and a pump rod adapted to be reciprocated by fo-ur connecting rods, and four cranks adapted to drive said connecting rods, said cranks being parts of wheels journalled in a horizontally positioned bed plate, driving means for said cranks including said wheels, and further compris-ing a train of gears on each side of said bed plate, each train consisting of one driving gear and two driven gears all of said driven gears having the same number of teeth, opposite driven gears being differentially connected on a common shaft so that each will be independent as to reciprocating the said cross head.

6. In a pump mechanism, a cross head and a pump rod adapted to be reciprocated by four connecting rods, and four cranks adapted to drive said connecting rods, said cranks being parts of wheels journalled in a horizontally positioned bed plate, a foundation plate, brace supports between said bed plate and said foundation plate, whereby the Working strains ofl the mechanism are transmitted' directly to the foundation plate, said brace supports consisting .of rigid spacing members adapted to space the bed plate from the foundation plate and threaded members adapted to draw plate and said foundation plate together against the said spacing members driving means for said cranks includ-" ing said wheels, and further comprising a train of gears on each side of said bed plate, each train consisting of one driving gear and two driven gears all of said driven gears having the same number of teeth.

7. In a pump mechanism, a cross-head and a pump rod adapted to be reciprocated by four connecting rods, and four cranks adapted to drive said connecting rods, said.. cranks being parts of wheels journalled in a horizontally positioned bed plate, driving means for said cranks including said wheels, and further comprising a train of gearson each side of said bed plate each train consisting` of one driving gear and two driven gears all of said driven gears having the same number of teeth, a foundation plate, a discharge T, or pump part positioned between said bed -plate and said foundation plate and held securely in place by threaded members adapted to ydraw said bed plate toward said foundation plate, spacing members adapted to space the bed plate from the foundation plate and provided with turn buckle means whereby they can be expanded to form rigid bracing between said plates.

8. A pump mechanism comprising a pump rod, driving gears disposed about said rod in quadrilateral arrangement, and connecting rods adapted to transmit motion from said gears to said rod.

9. In a pump mechanism wherein a pump rod and cross head are reciprocated by connecting rods raised and lowered by cranks driven by gears quadrilaterally positioned around said pump rod, a' guide; for `said pump rod centrally positioned within said quadrilateral, said guide adapted to be withdrawn with! said pump rod and Ameans whereby the said reciprocating members y may be folded aside and the guide -withdrawn with the pump rod.

In testimonywhereof I aiiix my signature. y

SAMUEL E. HUNTTING. 

